On a recent shopping excursion at a local Target store, Jim Krause went from aisle to aisle selecting the products he needed. He bought a variety of products, including shampoo, toothpaste, a green plant for his office, and several pairs of socks. Interestingly, the only salesperson Krause encountered was the person at the checkout counter. The checkout person at Target is an example of a$($n$)$

a$.$ order getter

b$.$ promoter

c$.$ order taker

d$.$ marketer

e$.$ information processor